Actual Dimensions: 19.75 x 20.75 x 4.88. Accumulair brand, 20x20x5 Trion Air Bear 455602-225 substitute whole house filters, specifically engineered to be an alternative to the name brand Trion Air Bear 455602-225 filters. Completely built so no forming or combs required. MERV graded to ASHRAE ratings establishing particle filtration as good or better than the original manufacturer Trion Air Bear 455602-225 filters. Photo: The sample air filter pic shown is not to scale and is shown for construction purposes. Name brands and Trion Air Bear 455602-225 part numbers are included for air filter substitution identification purposes.
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